gravity assist

(redirected from Gravitational boost)
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Related to Gravitational boost: gravity assist

gravity assist

n.
The use of the gravitational field of a moon, planet, or other moving celestial object to change a spacecraft's trajectory, especially to increase its velocity.
References in periodicals archive ?
All are on unstable orbits, and have a big chance of receiving a gravitational boost when their orbit brings them near Jupiter or one of the other giant planets.
Cassini darted near Venus and got a gravitational boost of energy at the expense of that planet, like a stone whirled in a sling.
The close brush is necessary to give Galileo a gravitational boost toward Jupiter, its final destination.
As it picks up a gravitational boost from the giant planet, the NASA-European Space Agency spacecraft is taking the opportunity to explore the behemoth's harsh environment of energetic charged particles, strong magnetic fields, and ionizing radiation.